To obtain an optical equipment capable of preventing a lens barrel from getting larger in its radial direction and securing the degree of freedom in design in a lens where a ring type ultrasonic motor is set as an AF driving means and on which a shake detection means for a vibration-proof device is mounted.

A stepping motor 6 for driving a diaphragm and a vibration gyro 11 for detecting shake are arranged on the same plane perpendicular to an optical axis direction, and such arrangement is set in the state of at least one focal distance even when the diaphragm is moved in a zoom lens and the like. Then, idle space provided for a diaphragm driving means is effectively used, the lens barrel is restrained from getting larger in the radial direction and the space in the optical axis direction is effectively utilized.